How to convert a long form table to wide form table in Excel?

Question

A picture is worth a thousand words. Let\'s say in one sheet I have the following table:

Answer 1

I can see another approach as well. Add two columns Count and Key.

Add the formulas and expand:

C2 -> =COUNTIF($B$2:B2;B2)
D2 -> =B2&"|"&C2
G2 -> =IFERROR(INDEX($A:$A;MATCH($F2&"|"&COLUMN(A1);$D:$D;0));"")